I feed 3 ferals, One of them i call black cat, shes a female, i feed her everyday, She's clearly not use to being touched, but she does let me hold her for a second, and sometimes she will come inside to eat then go back out. Earlier, I went to pick her up, and noticed that her nipples felt alittle big and erect. I havent noticed this before, but ive also never paid attention. She's fairly young, probably no older than 1 and a half. I dont know if maybe she could have been pregnant before, she's not that big, no baby fat. Then, again. She's kind of agressive around other cats, so i dont see how she would let one mate with her. Could she be pregnant?